References: Including a phrase such as "References available upon request" is perhaps the most common offense found on outdated resumes. Itâ€™s a waste of space and an unnecessary inclusion. Employers know that youâ€™ll provide references if requested. You donâ€™t have to say it. It is also important to note that references should only be submitted when requested by the employer. Donâ€™t send references with your resume unless instructed in the job posting.